M48T128Y sram equivalent, 1-mbit sram.
* Integrated, ultra low power SRAM, real-time
clock, power-fail control circuit, battery, and
crystal
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* BCD coded year, month, day, date, hours, t(s minutes,.
O
* 10 years of data retention and clock operation - in the absence of power t(s)
* Self-contained battery and c.
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